Bricklayer&#39;s line pin



y 1940- L. SABISTON BRIUKLAYER'S LINE PIN Filed April '7. 1938 Jerk Patented July 16, 1940 UNITED STATES PATENT OFFICE BRICKLAYERS LINE PIN- Application April 7, 1938, Serial No. 200,741

1 Claim.

This invention relates to a line-holder for bricklayers and masons, and is designed for use as a convenient means in holding the line to a wall as a guide for the bricklayer or mason in laying the Various horizontal rows of stone or brick which constitute a wall.

The object of the invention is to provide a very inexpensive and easily adjusted line-holder which may be stamped out in quantities from sheet material and otherwise shaped to provide means for securing a line thereto.

Other objects of the invention will become apparent as the detailed description thereof proceeds:

In the drawing:

Figure 1 is a perspective view of a corner of a wall in course of erection, the line being shown as held in position in a lead by the line-holder and prevented from sagging by another holder at some distance from the lead;

Figure 2- is a vertical section through a lineholder and part of the wall to which it is applied; and

Figure 3 is a front elevation of the line-holder.

It is common knowledge that in building a wall, it is necessary not only that the wall shall be plumb, but also that each row of brick or masonry shall lie in true horizontal lines. This result is ordinarily accomplished by means of a line drawn taut horizontally from a lead at one end of the wall to a lead at the other end thereof, and at a height from the top of the last row of brick or masonry to the height of the next row to be placed thereon.

This invention comprehends a line-holder on which the lines can not only be held as tightly as desired, but in which the pins can be readily withdrawn from the wall for repositioning to control the laying of the several rows of bricks or masonry.

As shown in the drawing, the reference numeral 4 designates a front section of a brick wall having a joint 4 into which is driven a lineholder 5 having a line 6 partly wound thereon and extending horizontally from the lead 1 in the direction of a lead (not shown) at the other end of the wall. The linepin 5 comprises a piece of suitable sheet material having its opposite edges 8 and 9 inclined toward each other and meeting in a point I0. These edges 8 and 9 form the sides of an isosceles triangle, the base of which is formed by the line joining the points H and 12. This line |Il2 also forms the base of a part l3 shaped as an isosceles trapezoid, having its outer edge lying between the points l4 and I5 parallel to the line joining the points II and I2.

As so far described, the pin 5 forms a very convenient means upon which the bricklayers or mas-en's line 6 can be wound, and which can be manufactured or stamped out in large quanti ties and sold cheaply or stamped with advertising matter and given away as a convenient means for distributing such matter.

To limit the extent to which the pin-can be driven into a wall, the said pin is stamped out in the region of the common base line II and H to formv a twig I6. As shown in Figure 1, this twig l6 forms. a stop for the outer coil of the line 6, while the converging edges of the pin tend to keep the line 6 in close contact with the face of the wall and the upper edge of lead row of bricks. The twig 16 also forms a convenient means for the bricklayer or mason to grasp for the purpose of removing the same from the wall. Obviously, this twig may be engaged by a hammer pean or by a crowbar in cases where the pin has become so tightly wedged in the wall joint that it cannot be removed by hand.

Where the distance between leads is such as to cause the line to sag at its center, it is customary for bricklayers to lay a brick at various intervals in the row between leads and support the line at these intervals by laying a nail, or similar object, on top of this brick and holding this nail extended from the face of the intermediate brick by means of another brick laid as a weight thereon. This new line-holder forms an eifici'ent and convenient substitute for a nail or the like used as an intermediate line support, since it is made of flat sheet material which forms a broad flat base adapted to be clamped between the bricks laid at intervals and any other bricks used to hold it positioned. When used in this manner to take up sag, it should also be located so that the twig IE will form a stop to hold the line in the vertical plane of the,

plane of the shank, facing towards the point,,

forming a rigid abutment adapted to be engaged by a prying tool, the points of said shank adjacent said tongue, between said tongue and said point forming a seat for a leveling line.

LARKIN SAB-ISTON. 

